<table>
  <tr>
    <td width="150px" height="40px">
        <iframe src="//www.facebook.com/plugins/like.php?href=<?php echo urlencode($url); ?>&amp;send=false&amp;layout=button_count&amp;width=150&amp;show_faces=false&amp;action=recommend&amp;colorscheme=light&amp;font=arial&amp;height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:150px; height:21px;" allowTransparency="true"></iframe>
    </td>
    <td width="150px">
        <iframe allowtransparency="true" frameborder="0" scrolling="no"
        src="https://platform.twitter.com/widgets/tweet_button.html?url=<?php echo urlencode($url); ?>&text=Páginas Amarillas <?php echo urlencode($url); ?>"
        style="width:130px; height:20px;"></iframe>
    </td>
  </tr>
</table>